Here's a possible scenario. I'm sure it's wildly off from reality, but maybe reality has the same properties. Each month, 1 in 10,000 users call in [1]. For the same revenue you can charge:
$1 per user per month
$10,000 per use
One of those, people will hate you for. Charging $100 per use would slash your revenue by 99%. May as well make it free. I actually think that would be the way to go and maybe they'll do it some day.
[1] If that seems wildly low, remember it's per month and getting lost in the wilderness is pretty rare for the average person.
The only thing is battery life. Especially in the cold, but that’s not an Apple thing, that’s an electronics thing. But you keep it in an internal pocket where body heat can keep it warm and turn off all the radios, or even the phone itself while not in use, and it can last a long time. I can now trade out my garmin inreach for a portable battery (which I already carry every trip yet never needed so far).
https://blog.telestial.com/2017/11/countries-where-satellite...
If people want it now in the US, they can just sign up for the beta. I know several people who did that and got it. It isn't a high bar.
In heavily tested locations (West Coast), it has gotten to the point that it seems to pretty much work.
Also SpaceX is not Tesla in the first place anyway.